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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Defined Benefit Plans Disclosures [Table Text Block] | The company uses a December 31 measurement date for the Arrow SERP benefit plan. Pension information for the years ended December 31 is as follows:
|  | Arrow SERP
|  | 2021 |  | 2020
Accumulated benefit obligation |  | $ | 97,568 |  |  | $ | 100,825 |
Changes in projected benefit obligation: |  |  |  |
Projected benefit obligation at beginning of year |  | 109,556 |  |  | 101,817 |
Service cost |  | 3,514 |  |  | 3,514 |
Interest cost |  | 2,575 |  |  | 3,087 |
Actuarial loss (gain) |  | (5,569) |  |  | 5,699 |
Benefits paid |  | (4,602) |  |  | (4,561) |
Projected benefit obligation at end of year |  | 105,474 |  |  | 109,556 |
Funded status |  | $ | (105,474) |  |  | $ | (109,556) |
Amounts recognized in the company's consolidated balance sheets: |  |  |  |
Current liabilities |  | $ | (4,927) |  |  | $ | (4,532) |
Noncurrent liabilities |  | (100,547) |  |  | (105,024) |
Net liability at end of year |  | $ | (105,474) |  |  | $ | (109,556) |
Components of net periodic pension cost: |  |  |  |
Service cost |  | $ | 3,514 |  |  | $ | 3,514 |
Interest cost |  | 2,575 |  |  | 3,087 |
Amortization of net loss |  | 2,449 |  |  | 1,606 |
Net periodic pension cost |  | $ | 8,538 |  |  | $ | 8,207 |
Weighted-average assumptions used to determine benefit obligation: |  |  |  |
Discount rate |  | 2.70 | % |  | 2.40 | %
Rate of compensation increase |  | 5.00 | % |  | 5.00 | %
Expected return on plan assets |  | N/A |  | N/A
Weighted-average assumptions used to determine net periodic pension cost: |  |  |  |
Discount rate |  | 2.40 | % |  | 3.10 | %
Rate of compensation increase |  | 5.00 | % |  | 5.00 | %
Expected return on plan assets |  | N/A |  | N/A
Schedule of Expected Benefit Payments [Table Text Block] | Benefit payments are expected to be paid as follows:
| Arrow SERP |  |
2022 | $ | 4,927 |  |  |
2023 | 6,461 |  |  |
2024 | 6,396 |  |  |
2025 | 6,306 |  |  |
2026 | 6,732 |  |  |
2027-2031 | 34,053 |  |  |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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